<template>
  <view>
    <view class="goods-list">
      <view v-for="(item,index) in goodsList" :key="index" @click="gotoGoodsDetail(item)">
        <my-goods :goods="item" ></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj: {
          query: '',
          cid: '',
          pagenum: 1,
          pagesize: 10
        },
        goodsList: [],
        total: 0,
        isLoading: false
      };
    },

    onLoad(options) {
      console.log(options);
      this.queryObj.cid = options.cid || ''
      this.queryObj.query = options.query || ''
      this.searchGoodsList()
    },

    methods: {
      async searchGoodsList(cb) {
        this.isLoading = true;
        const {
          data: res
        } = await uni.$http.get("/api/public/v1/goods/search", {
          ...this.queryObj
        })
        this.isLoading = false
        // 只要数据请求完毕，就立即按需调用 cb 回调函数
        cb && cb()
        if (res.meta.status !== 200) uni.$showMsg()
        // 为数据赋值：通过展开运算符的形式，进行新旧数据的拼接
        this.goodsList = [...this.goodsList, ...res.message.goods]
        this.total = res.message.total

      },
      
      gotoGoodsDetail(item){
        uni.navigateTo({
          url:"/subpkg/goods_detail/goods_detail?goods_id="+item.goods_id
        })
        
      }
      
    },
    // 触底的事件
    onReachBottom() {
      // 判断是否还有下一页数据
      if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')

      if (this.isLoading) return
      // 让页码值自增 +1
      this.queryObj.pagenum += 1
      // 重新获取列表数据
      this.searchGoodsList()
    },

    // 下拉刷新
    onPullDownRefresh() {
      // 1. 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []

      // 2. 重新发起请求
      this.searchGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">
  .goods-list {
    padding: 0px 10px;
    background-color: white;
  }
</style>